Evm Connections; Figure 2-1. Bq34Z100 Circuit Module Connection To Cells And System Load And Charger - Texas Instruments bq34z100EVM User Manual

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2.3 EVM Connections

This section covers the hardware connections for the EVM (see

Figure 2-1. bq34z100 Circuit Module Connection to Cells and System Load and Charger

• Direct connection to the cells: BAT–, BAT+
The bq34z100 monitors the cell stack voltage. Connect the bottom of the stack to BAT– and the top of the
stack to BAT+. The stack voltage can range from 3 V to 48 V (see
STACK VOLTAGE
Less than 5 V
Greater than 5 V
Applying a voltage greater than 5 V when jumpers are configured to < 5-V operation will damage
the IC. Do not apply power until you have completed the EVM Connections section.
• To the serial communications port (SCL, SDA)
Attach the Communications Interface Adapter cable to the J7 terminal block and to an EV2300 or EV2400
adapter box. Connect the PC USB cable to the EV2300 or EV2400 and the PC USB port (see
• The charger and system load connection across BAT+ and PACK–
Attach the charger or load to the TB3 terminal block. Connect the positive load wire to BAT+ and the ground
wire for the load to PACK– (see
• The ALERT output
The ALERT output is an active low interrupt. The ALERT Configuration register selects the Control Status bits
that will activate the interrupt. The ALERT pin is an open drain output and a pull-up resistor must be attached
to the TB1 to use the feature.
SLUU904B – APRIL 2012 – REVISED APRIL 2021
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WARNING
Figure 2-1).
bq34z100EVM Wide Range Impedance Track™ Enabled Battery Fuel Gauge
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Figure 2-1).
Figure 2-1).
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N/A
16 V, 32 V or 48 V
bq34z100 Quick Start Guide
Figure 2-1).
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